Hi.. Welcome to HEALTHCARE MAGIC.. I have gone through your query and can understand your concern.. As per your complain it seems that itching red rash in anal area with open sores can be most probably due to infection in anus.. It can be due to causes like Poor hygiene maintenance, over wiping or cleaning, dryness in the anal area, pinworm infection,yeast infection,contact dermatitis or allergic reaction, etc. You should consult a Proctologist and get evaluated and a proper diagnosis and investigations like microscopic examination of scrapings from the lesions and blood tests can help in diagnosis and treatment of underlying cause can relieve the symptoms.. As of now you should keep the area clean but avoid vigorous wiping.. Wash the area gently with water and a mild moisturiser based soap.. You should apply Zinc oxide based ointment or Petroleum jelly over the area.. Wear loose fitting and cotton undergarments.. You can also apply steroid ointment to relieve itching but do not use for a long duration for more than ten days to two weeks.. Take benadryl or levocetrizine to control itching.. You should avoid scratching the area to prevent infection.. Hope this information helps.. Thanks and regards.. Dr.Honey Nandwani Arora..